关于OPA842数据手册中对单位增益带宽和增益带宽积的疑问

目前我参考的所有资料都说是对于decompensated op amp，单位增益带宽小于增益带宽积，但是OPA842的datasheet里面却是单位增益带宽是增益带宽积的两倍，不知道这是为什么？

The Unity Gain Bandwidth can sometimes be larger than the GBP if there is peaking in the circuit. If you look at the datasheet table on the OPA842, the G=1, Rf=25 Bandwidth =350MHz,  G=2  BW = 150MHz, For gains of 5 and greater the GBW is around 200MHz. Remember that the amplifier gets more stable as the gain increases, which means that the phase margin is starting to increase. As the phase margin increases, the BW tends to reduce.